This student guide is intended to assist persons employed as supervisors in understanding the law relating to discipline and implementing disciplinary procedures. Discussed in the first five sections are the following topics: knowing the rules pertaining to employee discipline (getting information and making judgments); handling discipline (getting the facts; understanding Great Britain's Advisory, Conciliation, and Arbitration Service [ACAS] codes of practice; maintaining written records; and conducting a disciplinary interview); implementing disciplinary procedures (parts to a disciplinary procedure and their scope, sound procedures, warnings, appeals, and records); unfair dismissal and ACAS (Industrial Tribunals and unfair dismissal statistics); and unfair dismissal and the law. Each of these sections contains an introduction, sections of instructional text that are interspersed with reinforcing learning activities, and a section summary. The sixth part of the guide includes a series of performance checks (an end check, a tutor check, and a work-based project). Concluding the guide is a unit review that reviews the objectives addressed in the guide, describes related extension courses, and lists recommended reference materials. (MN)